#include<bits/stdc++.h>
using namespace std;
const int N=1e5+5;
int a[N];
int n;
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    scanf("%d",&n);
    for(int i=1;i<=n;i++) scanf("%d",&a[i]);
    sort(a+1,a+n+1);
    int k=1,tmp=0;
    int ans=0;
    for(int i=2;i<=n;i++){
        if(a[i]==a[i-1]) k++;
        else ans+=k,k=1;
        if(ans>0) ans--;
    }
    printf("%d",ans+k);
}